/*
 * @des 后台的js文件
 * 
 * 
 */
 function selectAll()
 {
   var obj = document.getElementsByName("checkAll[]");
   if(document.getElementById("selAll").checked == false)
   {
   for(var i=0; i<obj.length; i++)
   {
     obj[i].checked=false;
   }
   }else
   {
   for(var i=0; i<obj.length; i++)
   {  
     obj[i].checked=true;
   }
   }
  
 }

 //当选中所有的时候，全选按钮会勾上
 function setSelectAll()
 {
 	var obj=document.getElementsByName("checkAll[]");
 	var count = obj.length;
 	var selectCount = 0;
 	
 	for(var i = 0; i < count; i++)
 	{
 		if(obj[i].checked == true)
 		{
 			selectCount++;
 		}
 	}
 	if(count == selectCount)
 	{
 		document.all.selAll.checked = true;
 	}
 	else
 	{
 		document.all.selAll.checked = false;
 	}
 }

 //反选按钮
 function inverse() {
 	var checkboxs=document.getElementsByName("checkAll[]");
 	for (var i=0;i<checkboxs.length;i++) {
 	  var e=checkboxs[i];
 	  e.checked=!e.checked;
 	  setSelectAll();
 	}
 }
 //通过js获取参数
 function getQueryStringValue(name) { 
 	var str_url, str_pos, str_para;
 	var arr_param = new Array();
 	str_url = window.location.href;
 	str_pos = str_url.indexOf("?");
 	
 	str_para = str_url.substring(str_pos + 1);
 	if (str_pos > 0) {
 		//if contain # ----------------------begin
 		str_para = str_para.split("#")[0];
 		//-----------------------------------end
 		arr_param = str_para.split("&");
 		for (var i = 0; i < arr_param.length; i++) {
 		var temp_str = new Array()
 		temp_str = arr_param[i].split("=")
 		if (temp_str[0].toLowerCase() == name.toLowerCase()) {
 		return temp_str[1];
 		}
 		}
 	}
 	return "";
 } 
 
 function utf16to8(str) {
	    var out, i, len, c;

	    out = "";
	    len = str.length;
	    for(i = 0; i < len; i++) {
	        c = str.charCodeAt(i);
	        if ((c >= 0x0001) && (c <= 0x007F)) {
	            out += str.charAt(i);
	        } else if (c > 0x07FF) {
	            out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
	            out += String.fromCharCode(0x80 | ((c >>  6) & 0x3F));
	            out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));
	        } else {
	            out += String.fromCharCode(0xC0 | ((c >>  6) & 0x1F));
	            out += String.fromCharCode(0x80 | ((c >>  0) & 0x3F));
	        }
	    }
	    return out;
	}
 
 function utf8to16(str) {
	    var out, i, len, c;
	    var char2, char3;

	    out = "";
	    len = str.length;
	    i = 0;
	    while(i < len) {
	        c = str.charCodeAt(i++);
	        switch(c >> 4)
	        {
	          case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7:
	            // 0xxxxxxx
	            out += str.charAt(i-1);
	            break;
	          case 12: case 13:
	            // 110x xxxx   10xx xxxx
	            char2 = str.charCodeAt(i++);
	            out += String.fromCharCode(((c & 0x1F) << 6) | (char2 & 0x3F));
	            break;
	          case 14:
	            // 1110 xxxx  10xx xxxx  10xx xxxx
	            char2 = str.charCodeAt(i++);
	            char3 = str.charCodeAt(i++);
	            out += String.fromCharCode(((c & 0x0F) << 12) |
	                                           ((char2 & 0x3F) << 6) |
	                                           ((char3 & 0x3F) << 0));
	            break;
	        }
	    }

	    return out;
	}

	var base64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
	var base64DecodeChars = new Array(
	    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
	    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
	    -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63,
	    52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1,
	    -1,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14,
	    15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1,
	    -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
	    41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1);

	function base64encode(str) {
	    var out, i, len;
	    var c1, c2, c3;

	    len = str.length;
	    i = 0;
	    out = "";
	    while(i < len) {
	        c1 = str.charCodeAt(i++) & 0xff;
	        if(i == len)
	        {
	            out += base64EncodeChars.charAt(c1 >> 2);
	            out += base64EncodeChars.charAt((c1 & 0x3) << 4);
	            out += "==";
	            break;
	        }
	        c2 = str.charCodeAt(i++);
	        if(i == len)
	        {
	            out += base64EncodeChars.charAt(c1 >> 2);
	            out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
	            out += base64EncodeChars.charAt((c2 & 0xF) << 2);
	            out += "=";
	            break;
	        }
	        c3 = str.charCodeAt(i++);
	        out += base64EncodeChars.charAt(c1 >> 2);
	        out += base64EncodeChars.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
	        out += base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6));
	        out += base64EncodeChars.charAt(c3 & 0x3F);
	    }
	    return out;
	}

	function base64decode(str) {
	    var c1, c2, c3, c4;
	    var i, len, out;

	    len = str.length;
	    i = 0;
	    out = "";
	    while(i < len) {
	        /* c1 */
	        do {
	            c1 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
	        } while(i < len && c1 == -1);
	        if(c1 == -1)
	            break;

	        /* c2 */
	        do {
	            c2 = base64DecodeChars[str.charCodeAt(i++) & 0xff];
	        } while(i < len && c2 == -1);
	        if(c2 == -1)
	            break;

	        out += String.fromCharCode((c1 << 2) | ((c2 & 0x30) >> 4));

	        /* c3 */
	        do {
	            c3 = str.charCodeAt(i++) & 0xff;
	            if(c3 == 61)
	                return out;
	            c3 = base64DecodeChars[c3];
	        } while(i < len && c3 == -1);
	        if(c3 == -1)
	            break;

	        out += String.fromCharCode(((c2 & 0XF) << 4) | ((c3 & 0x3C) >> 2));

	        /* c4 */
	        do {
	            c4 = str.charCodeAt(i++) & 0xff;
	            if(c4 == 61)
	                return out;
	            c4 = base64DecodeChars[c4];
	        } while(i < len && c4 == -1);
	        if(c4 == -1)
	            break;
	        out += String.fromCharCode(((c3 & 0x03) << 6) | c4);
	    }
	    return out;
	}
	//js_base64 加密
	function str_encode(str){
	    return base64encode(utf16to8(str));
	}
	//js_base64 解密
	function str_decode(str){
	   return utf8to16(base64decode(str));
	}
 